1EAS

NONPEPTIDIC INHIBITORS OF HUMAN LEUKOCYTE ELASTASE. 3. DESIGN, SYNTHESIS, X-RAY CRYSTALLOGRAPHIC ANALYSIS, AND STRUCTURE-ACTIVITY RELATIONSHIPS FOR A SERIES OF ORALLY ACTIVE 3-AMINO-6-PHENYLPYRIDIN-2-ONE TRIFLUOROMETHYL KETONES


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.95 α = 90
b = 57.73 β = 90
c = 75.56 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
-- -- 88.0 -- -- -- -- -- 19195 2.0 -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 1.8 10.0 -- 2.0 -- 19022 -- 88.0 -- 0.183 0.183 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.7
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.38
x_bond_d 0.01
x_angle_deg 1.62
x_dihedral_angle_d 26.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1822
Nucleic Acid Atoms 0
Heterogen Atoms 49
Solvent Atoms 124

Software

Computing
Computing Package Purpose
X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building